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Obtain the reduction formula for intcos^...

Obtain the reduction formula for `intcos^(n)xdx`

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To derive the reduction formula for the integral \( I_n = \int \cos^n x \, dx \), we will follow a systematic approach using integration by parts. ### Step-by-Step Solution: 1. **Define the Integral**: Let \( I_n = \int \cos^n x \, dx \). 2. **Express \( \cos^n x \)**: ...
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